TWI676046B - Photographing optical lens assembly, imaging apparatus and electronic device - Google Patents

Abstract

An optical lens for photography includes six lenses, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in this order from the object side to the image side. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has a positive refractive power. The fourth lens has a concave surface near the optical axis of the image-side surface. The fifth lens has a positive refractive power, and its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. At least one of the object-side surface and the image-side surface of the first to sixth lenses includes at least one inflection point. When certain conditions are met, aberrations can be corrected and the telephoto function of the optical lens for photography can be improved.

Description

Optical lens, imaging device and electronic device for photography

The present invention relates to an optical lens and an imaging device for photography, and in particular, to an optical lens and an imaging device for miniaturization photography applied to an electronic device.

With the advancement of semiconductor process technology, the performance of electronic photosensitive elements has been improved, and pixels can reach even smaller sizes. Therefore, optical lenses with high imaging quality have become an indispensable part. With the rapid development of science and technology, the scope of application of electronic devices equipped with optical lenses has become more extensive, and the requirements for optical lenses have become more diverse. To achieve a balance between them, an optical lens that meets the aforementioned needs has become the goal of the industry.

The optical lens, image capturing device and electronic device provided by the present invention help to miniaturize and improve imaging quality by appropriately configuring the fifth lens's refractive power and surface shape in the optical lens for photography.

According to the present invention, there is provided an optical lens for photography, including six lenses, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in order from the object side to the image side. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has a positive refractive power. The fourth lens has a concave surface near the optical axis of the image-side surface. The fifth lens has a positive refractive power, and its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. At least one of the object-side surface and the image-side surface of the first to sixth lenses includes at least one inflection point. The Abbe number of the fifth lens is V5, the distance from the image side surface of the sixth lens to the imaging surface on the optical axis is BL, the distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the optical lens for photography The focal length is f, the focal length of the first lens is f1, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the fifth lens The distance from the sixth lens on the optical axis is T56, and the entrance pupil diameter of the optical lens for photography is EPD, which satisfies the following conditions: 10.0 <V5 <45.0; 0 <BL / TL <0.55; 0.5 <TL / f < 1.0; 0 <(T45 + T56) / T34 <5.80; 0.60 <f / f1 <5.0; and 1.60 <f / EPD <2.60.

According to the present invention, there is provided an optical lens for photography, including six lenses, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in order from the object side to the image side. Each lens has an object The side surface faces the object side and an image side surface faces the image side. The first lens has a positive refractive power. The fourth lens has a negative refractive power. The fifth lens has a positive refractive power, and its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. At least one of the object-side surface and the image-side surface of the first to sixth lenses includes at least one inflection point. The Abbe number of the fifth lens is V5, the distance from the image side surface of the sixth lens to the imaging surface on the optical axis is BL, the distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the optical lens for photography The focal length is f, the focal length of the first lens is f1, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the fifth lens The distance from the sixth lens on the optical axis is T56, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfies the following conditions: 10.0 <V5 <45.0; 0 <BL / TL <0.55; 0.5 <TL / f <1.0; 0 <(T45 + T56) / T34 <4.50; 1.0 <f / f1 <3.0; and -70.0 <R10 / f <0.

According to the present invention, there is further provided an image capturing device, including the optical lens for photography and the electronic photosensitive element as described in the previous paragraph, wherein the electronic photosensitive element is disposed on the imaging surface of the optical lens for photography.

According to the present invention, there is further provided an electronic device including the image capturing device as described in the previous paragraph.

According to the present invention, an optical lens for photography is provided, which includes six lenses, which are a first lens, a second lens, and a third lens in order from the object side to the image side. Mirror, fourth lens, fifth lens, and sixth lens. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has a positive refractive power. The fourth lens has a negative refractive power. The fifth lens has a positive refractive power, and its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. At least one of the object-side surface and the image-side surface of the first to sixth lenses includes at least one inflection point. The Abbe number of the fifth lens is V5, the distance from the image side surface of the sixth lens to the imaging surface on the optical axis is BL, the distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the optical lens for photography The focal length is f, the focal length of the first lens is f1, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the fifth lens The distance from the sixth lens on the optical axis is T56, the curvature radius of the object-side surface of the fifth lens is R9, and the curvature radius of the image-side surface of the fifth lens is R10, which meets the following conditions: 10.0 <V5 <45.0; 0 <BL / TL <0.55; 0.5 <TL / f <1.0; 0 <(T45 + T56) / T34 <4.50; 1.0 <f / f1 <3.0; and -105.00 <R10 / R9 <0.

When the V5 meets the above conditions, it can correct chromatic aberration and enhance the telephoto function of the optical lens for photography.

When the BL / TL meets the above conditions, the ratio between the back focal length and the total length can be adjusted so that the optical lens for photography occupies less volume to expand the application range.

When TL / f satisfies the above conditions, the ratio between the total length and the focal length can be adjusted to perform the telephoto function and reduce the total length.

When (T45 + T56) / T34 meets the above conditions, the lens distance at the image side of the optical lens for photography can be adjusted to further achieve an appropriate balance between aberration correction and volume compression.

When f / f1 satisfies the above conditions, the positive refractive power of the first lens can be maintained at an appropriate intensity, so as to improve the ability of condensing light and avoid excessive aberrations.

When the f / EPD meets the above conditions, the aperture size and the focal length of the optical lens for photography are adjusted to have a suitable aperture size and viewing angle.

When R10 / f satisfies the above conditions, the focal length of the optical lens for photography and the surface shape of the fifth lens are further adjusted to have a proper back focus.

When R10 / R9 satisfies the above conditions, the surface shape of the fifth lens can be appropriately adjusted to correct off-axis aberrations, and the fifth lens can be provided with an appropriate refractive power.

10, 10a, 10b, 31‧‧‧ camera

11‧‧‧ imaging lens

12‧‧‧Drive unit

14‧‧‧Image stabilization module

20, 30‧‧‧ electronic devices

21‧‧‧Flash Module

22‧‧‧ Focus Assist Module

23‧‧‧Image Signal Processor

24‧‧‧user interface

25‧‧‧Image Software Processor

26, 1111‧‧‧ Subject

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000‧‧‧ aperture

401, 501, 601, 701‧‧‧ diaphragm

110, 210, 310, 410, 510, 610, 710, 810, 910, 1010‧‧‧ first lens

111, 211, 311, 411, 511, 611, 711, 811, 911, 1011

112, 212, 312, 412, 512, 612, 712, 812, 912, 1012‧‧‧ image side surface

120, 220, 320, 420, 520, 620, 720, 820, 920, 1020‧‧‧Second lens

121, 221, 321, 421, 521, 621, 721, 821, 921, 1021‧‧‧ object side surface

122, 222, 322, 422, 522, 622, 722, 822, 922, 1022‧‧‧ image side surface

130, 230, 330, 430, 530, 630, 730, 830, 930, 1030‧‧‧ third lens

131, 231, 331, 431, 531, 631, 731, 831, 931, 1031‧‧‧ object-side surface

132, 232, 332, 432, 532, 632, 732, 832, 932, 1032‧‧‧ image side surface

140, 240, 340, 440, 540, 640, 740, 840, 940, 1040‧‧‧ fourth lens

141, 241, 341, 441, 541, 641, 741, 841, 941, 1041‧‧‧ object-side surface

142, 242, 342, 442, 542, 642, 742, 842, 942, 1042‧‧‧ image side surface

150, 250, 350, 450, 550, 650, 750, 850, 950, 1050‧‧‧ fifth lens

151, 251, 351, 451, 551, 651, 751, 851, 951, 1051

152, 252, 352, 452, 552, 652, 752, 852, 952, 1052 ‧‧‧ image side surface

160, 260, 360, 460, 560, 660, 760, 860, 960, 1060‧‧‧ sixth lens

161, 261, 361, 461, 561, 661, 761, 861, 961, 1061‧‧‧ object-side surface

162, 262, 362, 462, 562, 662, 762, 862, 962, 1062‧‧‧ image side surface

170, 270, 370, 470, 570, 670, 770, 870, 970, 1070‧‧‧ filters

180, 280, 380, 480, 580, 680, 780, 880, 980, 1080, 1180‧‧‧ imaging surface

13, 190, 290, 390, 490, 590, 690, 790, 890, 990, 1090‧‧‧ electronic photosensitive element

IP12, IP21, IP31, IP32, IP41, IP42, IP51, IP52, IP61, IP62

1100‧‧‧Photographic optical lens

1112a, 1112b‧‧‧Reflective element

f‧‧‧ focal length of optical lens for photography

Fno‧‧‧ aperture value of optical lens for photography

HFOV‧‧‧half of the maximum viewing angle in optical lenses for photography

V1‧‧‧ Abbe number of the first lens

V2 ‧‧‧ Abbe number of the second lens

V3‧‧‧ Abbe number of the third lens

V4‧‧‧ Abbe number of the fourth lens

V5‧‧‧ Abbe number of the fifth lens

V6‧‧‧ Abbe number of the sixth lens

Vmin‧‧‧ Minimum Abbe number of lens in optical lens for photography

BL‧‧‧ The distance from the image side surface of the sixth lens to the imaging plane on the optical axis

TL‧‧‧The distance from the object-side surface of the first lens to the imaging plane on the optical axis

SL‧‧‧ Distance from aperture to imaging plane on optical axis

T12‧‧‧ The distance between the first lens and the second lens on the optical axis

T34 The distance between the third lens and the fourth lens on the optical axis

T45‧‧‧ The distance between the fourth lens and the fifth lens on the optical axis

T56‧The distance between the fifth lens and the sixth lens on the optical axis

CT1‧‧‧thickness of the first lens on the optical axis

CT2‧‧‧thickness of the second lens on the optical axis

TD‧‧‧The distance from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis

Maximum image height of ImgH‧‧‧photographic optical lens

R1‧‧‧ the radius of curvature of the object-side surface of the first lens

R9‧‧‧The radius of curvature of the object-side surface of the fifth lens

R10‧‧‧The radius of curvature of the image-side surface of the fifth lens

EPD‧‧‧ entrance pupil diameter of optical lens for photography

f1‧‧‧ focal length of the first lens

f2‧‧‧ focal length of the second lens

f6‧‧‧ focal length of the sixth lens

FIG. 1 is a schematic diagram of an image capturing device according to the first embodiment of the present invention; FIG. 2 is a diagram of spherical aberration, astigmatism and distortion of the first embodiment in order from left to right; and FIG. 3 is a diagram showing Illustration of an image capturing device according to a second embodiment of the present invention Intent; FIG. 4 is a diagram of spherical aberration, astigmatism, and distortion of the second embodiment in order from left to right; FIG. 5 is a schematic diagram of an image capturing device according to a third embodiment of the present invention; FIG. 6 From left to right, the spherical aberration, astigmatism and distortion curves of the third embodiment are shown in sequence; FIG. 7 is a schematic diagram of an image capturing device according to the fourth embodiment of the present invention; and FIG. 8 is from left to right. The order of the spherical aberration, astigmatism and distortion of the fourth embodiment is shown in order; FIG. 9 is a schematic diagram of an image capturing device according to the fifth embodiment of the present invention; and FIG. 10 is the fifth implementation in order from left to right. Examples of spherical aberration, astigmatism and distortion curves; Figure 11 shows a schematic diagram of an image capturing device according to a sixth embodiment of the present invention; Figure 12 shows the spherical aberration, Astigmatism and distortion curves; FIG. 13 shows a schematic diagram of an image capturing device according to a seventh embodiment of the present invention; and FIG. 14 shows the spherical aberration, astigmatism and distortion curves of the seventh embodiment in order from left to right. FIG. 15 shows an image capturing device according to an eighth embodiment of the present invention. Figure 16 shows the spherical aberration, astigmatism and distortion curves of the eighth embodiment in order from left to right. Figure 17 shows a schematic diagram of an image capturing device according to the ninth embodiment of the present invention. Figure 18 From left to right, the spherical aberration, astigmatism and distortion curves of the ninth embodiment are shown in sequence; FIG. 19 is a schematic diagram of an image capturing device according to the tenth embodiment of the present invention; and FIG. 20 is from left to right. The order of the spherical aberration, astigmatism and distortion of the tenth embodiment is shown in sequence; FIG. 21 shows a schematic diagram of the inflection points in the first embodiment according to FIG. 1; and FIG. 22A shows an eleventh embodiment according to the present invention. FIG. 22B shows a schematic diagram of an image capturing apparatus according to an eleventh embodiment of the present invention with another reflecting element; FIG. 22C shows an image capturing apparatus according to an eleventh embodiment of the present invention FIG. 23 is a schematic diagram of an imaging device according to a twelfth embodiment of the present invention; FIG. 24A is a schematic diagram of one side of an electronic device according to a thirteenth embodiment of the present invention; Schematic diagram; Fig. 24B shows the electronic equipment according to Fig. 24A A schematic view of the other side; FIG. 24C is a schematic diagram of a system according to the electronic device in FIG. 24A; and FIG. 25 is a schematic diagram of an electronic device according to a fourteenth embodiment of the present invention.

An optical lens for photography includes six lenses, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in order from the object side to the image side. Each lens has an object-side surface facing the object side and an image-side surface facing the image side.

The first lens has a positive refractive power, which facilitates the convergence of light and helps to achieve a balance between the viewing angle and the total length. The object-side surface of the first lens may have a convex surface near the optical axis, which helps to make the optical lens for photography applicable to designs with a large aperture and a short overall length.

The second lens may have a negative refractive power, which may balance aberrations such as spherical aberration and chromatic aberration generated by the first lens. The image-side surface of the second lens may be a concave surface, and the traveling direction of the light may be adjusted to reduce the incident angle of the light on the surface of each lens to reduce surface reflection.

The fourth lens may have a negative refractive power, which may cooperate with the fifth lens to correct aberrations. The fourth lens may have a concave surface near the optical axis, which is helpful for correcting off-axis image curvature. The image-side surface of the fourth lens may include a shape of a concave surface to a convex surface, which is helpful for correcting the off-axis aberration and reducing the outer diameter of the lens.

The fifth lens has a positive refractive power, which can adjust the traveling direction of the light and reduce the incident angle of the light on the imaging surface to improve the response efficiency of the electronic photosensitive element. The fifth lens has a convex surface near the optical axis, which is helpful for adjusting the focal length and overall length of the optical lens for photography. The fifth lens has a convex surface near the optical axis, which facilitates the adjustment of the optical path, allows the optical lens for photography to have a back focal length of an appropriate length, and helps reduce the incident angle of light on the imaging surface and shorten the total length.

At least one of the object-side surface and the image-side surface of the first to sixth lenses includes at least one inflection point. Thereby, it is helpful to increase the aspheric surface variation, reduce the occurrence of aberrations, and reduce the volume. Preferably, at least two of the object-side surface and the image-side surface of the first to sixth lenses include at least one inflection point. More preferably, at least three of the object-side surface and the image-side surface of the first to sixth lenses include at least one inflection point.

In the photographic optical lens of the present invention, the inflection point is an interface point where the curvature of the lens surface changes positively or negatively.

The Abbe number of the fifth lens is V5, which satisfies the following conditions: 10.0 <V5 <45.0. This can correct chromatic aberration and enhance the telephoto function of the optical lens for photography. Preferably, the following conditions can be satisfied: 13.0 <V5 <38.0. More preferably, the following conditions can be satisfied: 16.0 <V5 <30.0.

The distance from the image side surface of the sixth lens to the imaging plane on the optical axis is BL, and the distance from the object side surface of the first lens to the imaging plane on the optical axis is TL, which satisfies the following conditions: 0 <BL / TL <0.55. Thereby, the ratio between the back focal length and the total length can be adjusted, so that the optical lens for photography occupies less volume, To expand the range of applications. Preferably, the following conditions can be satisfied: 0 <BL / TL <0.50.

The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, and the focal length of the optical lens for photography is f, which satisfies the following conditions: 0.5 <TL / f <1.0. Thereby, the ratio between the total length and the focal length can be adjusted to exert the telephoto function and reduce the total length.

The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the distance between the fifth lens and the sixth lens on the optical axis is T56 , Which meets the following conditions: 0 <(T45 + T56) / T34 <5.80. Thereby, the lens distance at the image side of the optical lens for photography can be adjusted, and an appropriate balance can be achieved between aberration correction and volume compression. Preferably, the following conditions can be satisfied: 0 <(T45 + T56) / T34 <4.50. More preferably, the following conditions can be satisfied: 0 <(T45 + T56) / T34 <2.45. Further, the following conditions can be further satisfied: 0 <(T45 + T56) / T34 <1.25.

The focal length of the optical lens for photography is f, and the focal length of the first lens is f1, which satisfies the following conditions: 0.60 <f / f1 <5.0. Thereby, the first lens can maintain a positive refractive power with an appropriate intensity, so as to improve the ability of condensing light and avoid excessive aberrations. Preferably, the following conditions can be satisfied: 1.0 <f / f1 <3.0. More preferably, the following conditions can be satisfied: 1.7 <f / f1 <2.5.

2.70。更佳地，可滿足下列條件：1.60<f/EPD<2.60。進一步，更可滿足下列條件：1.90<f/EPD

2.55。 The focal length of the optical lens for photography is f, and the entrance pupil diameter of the optical lens for photography is EPD, which satisfies the following conditions: 1.00 <f / EPD <2.80. Therefore, by adjusting the aperture size and the focal length of the optical lens for photography, it has a proper aperture size and viewing angle. Preferably, the following conditions can be satisfied: 1.30 <f / EPD

2.70. More preferably, the following conditions can be satisfied: 1.60 <f / EPD <2.60. Furthermore, the following conditions can be satisfied: 1.90 <f / EPD

2.55.

The radius of curvature of the image-side surface of the fifth lens is R10, and the focal length of the optical lens for photography is f, which satisfies the following conditions: -70.0 <R10 / f <0. Thereby, the focal length of the optical lens for photography and the shape of the fifth lens are further adjusted to have a back focal length of an appropriate length. Preferably, the following conditions can be satisfied: -60.0 <R10 / f <0. More preferably, the following conditions can be satisfied: -50.0 <R10 / f <0.

The curvature radius of the object-side surface of the fifth lens is R9, and the curvature radius of the image-side surface of the fifth lens is R10, which satisfies the following conditions: -105.00 <R10 / R9 <0. Thereby, the surface shape of the fifth lens can be appropriately adjusted to correct off-axis aberrations, and the fifth lens can have a refractive power with an appropriate strength. Preferably, the following conditions can be satisfied: -100.00 <R10 / R9 <-0.10. More preferably, the following conditions can be satisfied: -80.00 <R10 / R9 <-0.15. Furthermore, the following conditions can be satisfied: -50.00 <R10 / R9 <-0.30.

The minimum value of the Abbe number of a lens in a photographic optical lens is Vmin, which satisfies the following conditions: 10.0 <Vmin <20.0. This makes use of the characteristics of a generally low Abbe number material that has a strong ability to bend light, and by arranging a low Abbe number material helps to correct chromatic aberration and other types of aberrations.

The Abbe number of the third lens is V3, and the Abbe number of the fourth lens is V4, which satisfies the following conditions: 20.0 <V3 + V4 <100. With this, can The third lens and the fourth lens are matched with each other to correct aberrations such as chromatic aberration. Preferably, the following conditions can be satisfied: 50.0 <V3 + V4 <90.0.

The thickness of the second lens on the optical axis is CT2, and the distance between the first lens and the second lens on the optical axis is T12, which satisfies the following conditions: 0.41 <T12 / CT2 <3.8. Thereby, the first lens and the second lens can be matched with each other to correct aberrations, and help reduce assembly difficulty. Preferably, the following conditions can be satisfied: 0.70 <T12 / CT2 <2.8.

The distance from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis is TD, and the distance between the third lens and the fourth lens on the optical axis is T34, which satisfies the following conditions: 1.8 <TD / T34 < 5.0. Thereby, the ratio between the distance between the third lens and the fourth lens and the length of the optical lens for photography can be adjusted, which is helpful for correcting the aberration and the total compression length.

f/f6<0.60。藉此，可避免第六透鏡之屈折力過強，以形成適當長度的後焦距。較佳地，可滿足下列條件：-0.70<f/f6<0.40。 The focal length of the optical lens for photography is f, and the focal length of the sixth lens is f6, which satisfies the following conditions: -0.90

f / f6 <0.60. This can prevent the refractive power of the sixth lens from being too strong to form a back focal length of an appropriate length. Preferably, the following conditions can be satisfied: -0.70 <f / f6 <0.40.

The photographic optical lens may further include an aperture, which is disposed on the object side of the third lens. With this, the aperture position can be adjusted to achieve a balance between viewing angle and volume.

The distance from the aperture to the imaging surface on the optical axis is SL, and the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, which satisfies the following conditions: 0.60 <SL / TL <1.2. Thereby, the aperture position can be further adjusted to shorten the total length. Preferably, the following conditions can be satisfied: 0.70 <SL / TL <1.0.

The focal length of the optical lens for photography is f, and the radius of curvature of the object-side surface of the first lens is R1, which satisfies the following conditions: 3.2 <f / R1. By adjusting the focal length of the optical lens for photography and the shape of the first lens, the telephoto lens's telephoto characteristics are exerted.

The Abbe number of at least three of the six lenses of the optical lens for photography is less than 45. By arranging materials with a low Abbe number, correction of aberrations such as chromatic aberration is enhanced. Preferably, the Abbe number of at least four of the six lenses is less than 45.

The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, and the maximum image height of the photographic optical lens is ImgH, which satisfies the following conditions: 1.6 <TL / ImgH <5.0. This can maintain the imaging quality while compressing the total length and increasing the imaging surface area.

Half of the maximum viewing angle in photographic optical lenses is HFOV, which satisfies the following conditions: 10.0 degrees <HFOV <30.0 degrees. Thereby, the telephoto characteristics of the optical lens for photography can be provided, and the volume can be maintained.

The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, which satisfies the following conditions: 2.0mm <TL <20mm. This allows the optical lens for photography to maintain a short overall length and maintain manufacturing and assembly yields. Preferably, the following conditions can be satisfied: 3.5mm <TL <14mm.

The distance from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis is TD, and the thickness of the first lens on the optical axis is CT1, which satisfies the following conditions: 1.8 <TD / CT1 <7.0. Thereby, the ratio of the length of the optical lens for photography to the thickness of the first lens can be adjusted, which helps to reduce the overall length.

The focal length of the optical lens for photography is f, and the focal length of the second lens is f2, which satisfies the following conditions: -5.0 <f / f2 <-0.65. Thereby, the refractive power of the second lens can be adjusted to correct the aberration. Preferably, the following conditions can be satisfied: -4.0 <f / f2 <-0.85.

The focal length of the optical lens for photography is f, and the maximum image height of the optical lens for photography is ImgH, which satisfies the following conditions: 1.65 <f / ImgH <5.50. In this way, it is helpful to adjust the viewing angle and the size of the imaging surface so as to achieve a balance between imaging quality and telephoto characteristics.

Each of the technical features in the above-mentioned photographic optical lens of the present invention can be configured in combination to achieve corresponding effects.

In the optical lens for photography provided by the present invention, the material of the lens may be glass or plastic. If the material of the lens is glass, the degree of freedom in the configuration of the refractive power of the optical lens for photography can be increased, and the glass lens can be manufactured using techniques such as grinding or molding. If the lens is made of plastic, it can effectively reduce production costs. In addition, an aspheric surface (ASP) can be set on the mirror surface, thereby obtaining more control variables to reduce aberrations, reduce the number of lenses, and effectively reduce the total length of the optical lens for photography of the present invention. Made by plastic injection molding or molding of glass lenses.

In the optical lens for photography provided by the present invention, additives can be selectively added to any (or more) lens material to change the lens' transmittance to light in a specific wavelength band, thereby reducing stray light and color shift. For example: the additive can have the function of filtering out the light in the 600nm ~ 800nm band in the system to reduce excess red or infrared light; or it can filter out the light in the band of 350nm ~ 450nm to reduce the blue or ultraviolet light in the system. Additives can avoid special Fixed-band light interferes with imaging. In addition, the additives can be uniformly mixed in plastic and made into a lens by injection molding technology.

In the optical lens for photography provided by the present invention, if the lens surface is aspherical, it means that the entire or a part of the optical effective area of the lens surface is aspherical.

In the optical lens for photography provided by the present invention, if the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface may be convex at the near optical axis; if the lens surface is concave and the concave position is not defined , It means that the lens surface can be concave at the near optical axis. In the optical lens for photography provided by the present invention, if the lens has positive or negative refractive power, or the focal length of the lens, it can refer to the refractive power or focal length of the lens near the optical axis.

The imaging surface of the photographic optical lens of the present invention may be a flat surface or a curved surface having any curvature, especially a curved surface with a concave surface facing the object side, depending on the corresponding electronic photosensitive element. In addition, in the photographic optical lens of the present invention, more than one imaging correction element (flat field element, etc.) can be selectively arranged between the lens closest to the imaging plane and the imaging plane, so as to achieve the effect of correcting the image (such as curvature). The optical properties of the imaging correction element, such as curvature, thickness, refractive index, position, and shape (convex or concave, spherical or aspherical, diffractive surface, and Fresnel surface, etc.) can be adjusted according to the needs of the imaging device . Generally speaking, a preferred imaging correction element is configured such that a thin flat concave element having a concave surface facing the object side is disposed near the imaging surface.

In addition, in the optical lens for photography according to the present invention, at least one diaphragm, such as an aperture stop (Aperture Stop) or a flares diaphragm, may be provided as required. (Glare Stop) or Field Stop (field stop), etc. can help reduce stray light and improve image quality.

In the photographic optical lens of the present invention, the aperture configuration may be a front aperture or a middle aperture, where the front aperture means that the aperture is set between the subject and the first lens, and the middle aperture means that the aperture is set on the first lens And imaging surface. If the aperture is a front aperture, the exit pupil of the optical lens for photography can have a longer distance from the imaging surface, making it have a telecentric effect, and it can increase the CCD or CMOS of the electronic photosensitive element to receive the image Efficiency; if it is a central aperture, it helps to expand the field of view of the optical lens for photography, giving it the advantage of a wide-angle lens.

In the present invention, a variable-aperture element can be appropriately provided. The variable-aperture element can be a mechanical component or a light control element, which can control the size and shape of the aperture by electric or electric signals. The mechanical component may include movable members such as a blade group and a shielding plate; and the light control element may include a shielding element such as a filter element, an electrochromic material, and a liquid crystal layer. The variable aperture element can enhance the ability of image adjustment by controlling the amount of light entering or exposure time of the image. In addition, the variable aperture element can also be the aperture of the present invention, and the image quality can be adjusted by changing the aperture value, such as the depth of field or the exposure speed.

The photographic optical lens of the present invention can also be applied to three-dimensional (3D) image capture, digital cameras, mobile products, digital tablets, smart TVs, network monitoring equipment, somatosensory game machines, driving recorders, and reversing development. Devices, wearable products, and aerial cameras.

The present invention provides an image pickup device, including the aforementioned optical lens for photography and an electronic photosensitive element, wherein the electronic photosensitive element is disposed in the photograph An imaging surface of an optical lens group. The proper configuration of the fifth lens's refractive power and surface shape in the optical lens for photography helps to miniaturize it and improve imaging quality. Preferably, the image capturing device may further include a Barrel Member, a Holder Member, or a combination thereof.

The present invention provides an electronic device including the aforementioned image capturing device. This improves the image quality. Preferably, the aforementioned electronic devices may further include a control unit, a display unit, a display unit, a storage unit, a temporary storage unit (RAM) or a combination thereof.

According to the foregoing implementation manners, specific examples are provided below and described in detail with reference to the drawings.

<First Embodiment>

Please refer to FIG. 1 and FIG. 2, wherein FIG. 1 shows a schematic diagram of an image capturing device according to the first embodiment of the present invention, and FIG. 2 shows the spherical aberration and image of the first embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 1, the image pickup device of the first embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 190. The optical lens for photography includes an aperture 100, a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, and a filter element 170 in this order from the object side to the image side. And an imaging surface 180, and the electronic photosensitive element 190 is disposed on the imaging surface 180 of an optical lens for photography, wherein the optical lens for photography includes six lenses (110, 120, 130, 140, 150, 160), and the six lenses No other interpolated lenses.

The first lens 110 has a positive refractive power and is made of plastic. The object-side surface 111 is convex near the optical axis, and its image-side surface 112 is near the optical axis. Are convex and all are aspheric. In addition, referring to FIG. 21, it is a schematic diagram showing the inflection point in the first embodiment according to FIG. It can be seen from FIG. 21 that the image-side surface 112 of the first lens includes at least one inflection point IP12.

The second lens 120 has a negative refractive power and is made of plastic. Its object-side surface 121 is concave at the near-optical axis, and its image-side surface 122 is concave at the near-optical axis, and all are aspheric. In addition, the object-side surface 121 of the second lens includes at least one inflection point IP21.

The third lens 130 has a positive refractive power and is made of plastic. Its object-side surface 131 is convex at the near optical axis, and its image-side surface 132 is concave at the near optical axis, and all of them are aspheric. In addition, the object-side surface 131 and the image-side surface 132 of the third lens each include at least one inflection point IP31, IP32.

The fourth lens 140 has a negative refractive power and is made of plastic. The object-side surface 141 is concave at the near-optical axis, and the image-side surface 142 is concave at the near-optical axis, and all are aspheric. In addition, the object-side surface 141 and the image-side surface 142 of the fourth lens each include at least one inflection point IP41 and IP42, and the image-side surface 142 of the fourth lens includes a shape of a concave surface and a convex surface off-axis.

The fifth lens 150 has a positive refractive power and is made of plastic. Its object-side surface 151 is convex near the optical axis, and its image-side surface 152 is convex near the optical axis, and all are aspheric. In addition, the object-side surface 151 and the image-side surface 152 of the fifth lens each include at least one inflection point IP51, IP52.

The sixth lens 160 has a positive refractive power and is made of plastic. The object-side surface 161 is concave at the near-optical axis, and the image-side surface 162 is convex at the near-optical axis, and all are aspheric. In addition, the object-side surface 161 and the image-side surface 162 of the sixth lens each include at least one inflection point IP61 and IP62.

The filter element 170 is made of glass and is disposed between the sixth lens 160 and the imaging surface 180 without affecting the focal length of the optical lens for photography.

；其中：X：非球面上距離光軸為Y的點，其與相切於非球面光軸上交點切面的相對距離；Y：非球面曲線上的點與光軸的垂直距離；R：曲率半徑；k：錐面係數；以及Ai：第i階非球面係數。 The aspheric curve equations of the above lenses are expressed as follows:

; Where: X: the point on the aspheric surface from the optical axis Y, its relative distance from the tangent plane tangent to the intersection on the aspheric optical axis; Y: the vertical distance between the point on the aspheric curve and the optical axis; R: curvature Radius; k: cone coefficient; and Ai: aspherical coefficient of the i-th order.

In the optical lens for photography in the first embodiment, the focal length of the optical lens for photography is f, the aperture value (f-number) of the optical lens for photography is Fno, and the half of the maximum viewing angle in the optical lens for photography is HFOV. : F = 6.80mm; Fno = 2.45; and HFOV = 23.4 degrees.

In the photographic optical lens of the first embodiment, the Abbe number of the first lens 110 is V1, the Abbe number of the second lens 120 is V2, the Abbe number of the third lens 130 is V3, and the Abbe number of the fourth lens 140 is The abbe number is V4, the Abbe number of the fifth lens 150 is V5, the Abbe number of the sixth lens 160 is V6, and the minimum Abbe number of the lens in the optical lens for photography is Vmin (ie, V1, V2, V3, V4). , V5, and V6), which satisfy the following conditions: V3 + V4 = 75.4; V5 = 20.4; and Vmin = 19.4.

In the photographic optical lens of the first embodiment, the distance on the optical axis from the image-side surface 162 of the sixth lens to the imaging surface 180 is BL, and the first lens object The distance on the optical axis from the side surface 111 to the imaging plane 180 is TL, and the distance on the optical axis from the aperture 100 to the imaging plane 180 is SL, which satisfies the following conditions: BL / TL = 0.10; and SL / TL = 0.88.

In the photographic optical lens of the first embodiment, the thickness of the second lens 120 on the optical axis is CT2, and the distance between the first lens 110 and the second lens 120 on the optical axis is T12, which satisfies the following conditions: T12 / CT2 = 1.31.

In the optical lens for photography in the first embodiment, the distance between the third lens 130 and the fourth lens 140 on the optical axis is T34, and the distance between the fourth lens 140 and the fifth lens 150 on the optical axis is T45. The distance between the five lenses 150 and the sixth lens 160 on the optical axis is T56, which satisfies the following conditions: (T45 + T56) /T34=0.13.

In the photographing optical lens of the first embodiment, the distance on the optical axis from the object-side surface 111 to the image-side surface 162 of the first lens 111 is TD, the thickness of the first lens 110 on the optical axis is CT1, and the third The distance between the lens 130 and the fourth lens 140 on the optical axis is T34, which satisfies the following conditions: TD / CT1 = 4.76; and TD / T34 = 3.41.

In the photographic optical lens of the first embodiment, the distance on the optical axis from the object-side surface 111 of the first lens to the imaging surface 180 is TL, the focal length of the photographic optical lens is f, and the maximum image height of the photographic optical lens is ImgH (Ie, half the diagonal length of the effective sensing area of the electronic photosensitive element 190), it satisfies the following conditions: TL = 5.99mm; TL / f = 0.88; and TL / ImgH = 2.04.

In the optical lens for photography of the first embodiment, the focal length of the optical lens for photography is f, the radius of curvature of the fifth lens object-side surface 151 is R9, and the radius of curvature of the fifth lens image-side surface 152 is R10, which satisfies the following conditions : R10 / f = -11.67; and R10 / R9 = -2.87.

In the optical lens for photography in the first embodiment, the focal length of the optical lens for photography is f, the entrance pupil diameter of the optical lens for photography is EPD, the focal length of the first lens 110 is f1, and the focal length of the second lens 120 is f2. The focal length of the six lens 160 is f6, the maximum image height of the optical lens for photography is ImgH, and the curvature radius of the object-side surface 111 of the first lens is R1, which meets the following conditions: f / EPD = 2.45; f / f1 = 2.19; /f2=-1.59; f / f6 = 0.03; f / ImgH = 2.32; and f / R1 = 4.01.

Refer to Tables 1 and 2 below for further cooperation.

Table 1 shows the detailed structural data of the first embodiment in FIG. 1, where the units of the radius of curvature, thickness, and focal length are mm, and the surface 0-16 sequentially represents the surface from the object side to the image side. Table 2 shows the aspheric data in the first embodiment, where k represents the cone coefficient in the aspheric curve equation, and A4-A16 represents the aspheric coefficients of the 4th to 16th order on each surface. In addition, the tables of the following embodiments are schematic diagrams and aberration curves corresponding to the embodiments. The definitions of the data in the tables are the same as the definitions of Tables 1 and 2 of the first embodiment, and will not be repeated here.

In the first embodiment, the object-side surface and the image-side surface of the first lens 110, the second lens 120, the third lens 130, the fourth lens 140, the fifth lens 150, and the sixth lens 160 include a list of the number of inflection points as follows.

In addition, in the optical lens for photography in the first embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45; specifically, in the first embodiment, the Abbe number of the three lenses is less than 45. , Respectively, the second lens 120, the third lens 130, and the fifth lens 150.

<Second Embodiment>

Please refer to FIG. 3 and FIG. 4, wherein FIG. 3 shows a schematic diagram of an image capturing device according to a second embodiment of the present invention, and FIG. 4 shows the spherical aberration and image of the second embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 3, the image pickup device of the second embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 290. The optical lens for photography includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260, and a filter element 270 in this order from the object side to the image side. And an imaging surface 280, and the electronic photosensitive element 290 is disposed on the imaging surface 280 of an optical lens for photography, wherein the optical lens for photography includes six lenses (210, 220, 230, 240, 250, 260), and the six lenses No other interpolated lenses.

The first lens 210 has a positive refractive power and is made of plastic. Its object-side surface 211 is convex at the near optical axis, and its image-side surface 212 is concave at the near optical axis, and all are aspheric. In addition, the image-side surface 212 of the first lens includes at least one inflection point.

The second lens 220 has a negative refractive power and is made of plastic. Its object-side surface 221 is convex near the optical axis, and its image-side surface 222 is concave near the optical axis, and both are aspheric. In addition, the object-side surface 221 of the second lens includes at least one inflection point.

The third lens 230 has a negative refractive power and is made of plastic. Its object-side surface 231 is convex near the optical axis, and its image-side surface 232 is concave near the optical axis, and all are aspheric. In addition, the third lens object-side surface 231 includes at least one inflection point.

The fourth lens 240 has a negative refractive power and is made of plastic. The object-side surface 241 is concave at the near optical axis, and the image-side surface 242 is concave at the near optical axis, and are all aspheric. In addition, the object-side surface 241 and the image-side surface 242 of the fourth lens each include at least one inflection point, and the image-side surface 242 of the fourth lens includes a concave-convex surface shape off-axis.

The fifth lens 250 has a positive refractive power and is made of plastic. Its object-side surface 251 is convex near the optical axis, and its image-side surface 252 is convex near the optical axis, and all are aspheric. In addition, the object-side surface 251 and the image-side surface 252 of the fifth lens each include at least one inflection point.

The sixth lens 260 is made of plastic. The object-side surface 261 is a plane near the optical axis, and the image-side surface 262 is a plane near the optical axis, and they are all aspheric. In addition, the sixth lens object-side surface 261 includes at least one inflection point.

The filter element 270 is made of glass and is disposed between the sixth lens 260 and the imaging surface 280 without affecting the focal length of the optical lens for photography.

Refer to Table 3 and Table 4 below.

In the second embodiment, the aspherical curve equation is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

With Table 3 and Table 4, the following data can be calculated:

In the second embodiment, the object-side surface and the image-side surface of the first lens 210, the second lens 220, the third lens 230, the fourth lens 240, the fifth lens 250, and the sixth lens 260 include a list of the number of inflection points as follows.

In addition, in the optical lens for photography of the second embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45; specifically, the Abbe number of the four lenses is less than 45 in the second embodiment. Are the second lens 220, the third lens 230, the fifth lens 250, and the sixth lens 260, respectively.

<Third Embodiment>

Please refer to FIG. 5 and FIG. 6, where FIG. 5 is a schematic diagram of an image capturing device according to a third embodiment of the present invention, and FIG. 6 is the spherical aberration and image of the third embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 5, the image pickup device of the third embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 390. The optical lens for photography includes an aperture 300, a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, and a filter element 370 in this order from the object side to the image side. And an imaging surface 380, and the electronic photosensitive element 390 is disposed on the imaging surface 380 of an optical lens for photography, where the optical lens for photography includes six lenses (310, 320, 330, 340, 350, 360), and the six lenses No other interpolated lenses.

The first lens 310 has a positive refractive power and is made of plastic. Its object-side surface 311 is convex near the optical axis, and its image-side surface 312 is concave near the optical axis, and all are aspheric. In addition, the first lens image-side surface 312 includes at least one inflection point.

The second lens 320 has a negative refractive power and is made of plastic. Its object-side surface 321 is convex near the optical axis, and its image-side surface 322 is concave near the optical axis, and all of them are aspherical. In addition, the second lens object-side surface 321 includes at least one inflection point.

The third lens 330 has a negative refractive power and is made of plastic. The object-side surface 331 is concave near the optical axis, and the image-side surface 332 is concave near the optical axis, and they are all aspheric. In addition, the third lens object-side surface 331 includes at least one inflection point.

The fourth lens 340 has a negative refractive power and is made of plastic. The object-side surface 341 is concave at the near-optical axis, and the image-side surface 342 is concave at the near-optical axis, and all are aspheric. In addition, the object-side surface 341 and the image-side surface 342 of the fourth lens each include at least one inflection point, and the image-side surface 342 of the fourth lens includes a concave-convex surface shape off-axis.

The fifth lens 350 has a positive refractive power and is made of plastic. Its object-side surface 351 is convex near the optical axis, and its image-side surface 352 is near the optical axis. Are convex and all are aspheric. In addition, the fifth lens object-side surface 351 includes at least one inflection point.

The sixth lens 360 has a positive refractive power and is made of plastic. Its object-side surface 361 is convex near the optical axis, and its image-side surface 362 is convex near the optical axis, and all are aspheric. In addition, both the object-side surface 361 and the image-side surface 362 of the sixth lens include at least one inflection point.

The filter element 370 is made of glass and is disposed between the sixth lens 360 and the imaging surface 380 without affecting the focal length of the optical lens for photography.

Refer to Table 5 and Table 6 below.

In the third embodiment, the aspherical curve equation is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

With Table 5 and Table 6, the following data can be calculated:

In the third embodiment, the object-side surface and the image-side surface of the first lens 310, the second lens 320, the third lens 330, the fourth lens 340, the fifth lens 350, and the sixth lens 360 include a list of the number of inflection points as follows.

In addition, in the photographic optical lens according to the third embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45; specifically, in the third embodiment, the Abbe number of the three lenses is less than 45. , Respectively, the second lens 320, the third lens 330, and the fifth lens 350.

<Fourth Embodiment>

Please refer to FIG. 7 and FIG. 8, wherein FIG. 7 shows a schematic diagram of an image capturing device according to a fourth embodiment of the present invention, and FIG. 8 sequentially shows the spherical aberration and image of the fourth embodiment from left to right. Scatter and distortion curves. As can be seen from FIG. 7, the image pickup device of the fourth embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 490. The optical lens for photography includes an aperture 400, a first lens 410, a second lens 420, a diaphragm 401, a third lens 430, a fourth lens 440, a fifth lens 450, a sixth lens 460, and The filter element 470 and the imaging surface 480, and the electronic photosensitive element 490 is disposed on the imaging surface 480 of an optical lens for photography. The optical lens for photography includes six lenses (410, 420, 430, 440, 450, 460). There are no other interpolated lenses among the six lenses.

The first lens 410 has a positive refractive power and is made of plastic. The object-side surface 411 is convex at the near optical axis, and the image-side surface 412 is concave at the near optical axis, and all of them are aspherical. In addition, the image-side surface 412 of the first lens includes at least one inflection point.

The second lens 420 has a negative refractive power and is made of plastic. The object-side surface 421 is concave at the near optical axis, and the image-side surface 422 is near the optical axis. They are concave and all are aspheric. In addition, the object-side surface 421 of the second lens includes at least one inflection point.

The third lens 430 has a negative refractive power and is made of plastic. The object-side surface 431 is concave at the near-optical axis, and the image-side surface 432 is convex at the near-optical axis, and all are aspheric. In addition, the object-side surface 431 and the image-side surface 432 of the third lens each include at least one inflection point.

The fourth lens 440 has a negative refractive power and is made of plastic. Its object-side surface 441 is convex near the optical axis, and its image-side surface 442 is concave near the optical axis, and all are aspheric. In addition, the object-side surface 441 and the image-side surface 442 of the fourth lens each include at least one inflection point, and the image-side surface 442 of the fourth lens includes a concave-convex surface shape off-axis.

The fifth lens 450 has a positive refractive power and is made of plastic. The object-side surface 451 is convex at the near-optical axis, and the image-side surface 452 is convex at the near-optical axis, and all are aspheric. In addition, both the object-side surface 451 and the image-side surface 452 of the fifth lens include at least one inflection point.

The sixth lens 460 has a positive refractive power and is made of plastic. Its object-side surface 461 is convex at the near optical axis, and its image-side surface 462 is concave at the near optical axis, and all are aspheric. In addition, both the object-side surface 461 and the image-side surface 462 of the sixth lens include at least one inflection point.

The filter element 470 is made of glass and is disposed between the sixth lens 460 and the imaging surface 480 without affecting the focal length of the optical lens for photography.

Refer to Table 7 and Table 8 below.

In the fourth embodiment, the curve equation of the aspherical surface is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

With Table 7 and Table 8, the following data can be calculated:

In the fourth embodiment, the object-side surface and the image-side surface of the first lens 410, the second lens 420, the third lens 430, the fourth lens 440, the fifth lens 450, and the sixth lens 460 include a list of the number of inflection points as follows.

In addition, in the fourth embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45. Specifically, in the fourth embodiment, the Abbe number of the four lenses is less than 45. , Respectively, a second lens 420, a third lens 430, a fifth lens 450, and a sixth lens 460.

<Fifth Embodiment>

Please refer to FIG. 9 and FIG. 10, where FIG. 9 is a schematic diagram of an image capturing device according to a fifth embodiment of the present invention, and FIG. 10 is from left to On the right are spherical aberration, astigmatism, and distortion curves of the fifth embodiment. As can be seen from FIG. 9, the image pickup device of the fifth embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 590. The optical lens for photography includes an aperture 500, a first lens 510, a second lens 520, a diaphragm 501, a third lens 530, a fourth lens 540, a fifth lens 550, a sixth lens 560, and The filter element 570 and the imaging surface 580, and the electronic photosensitive element 590 is disposed on the imaging surface 580 of an optical lens for photography. The optical lens for photography includes six lenses (510, 520, 530, 540, 550, 560). There are no other interpolated lenses among the six lenses.

The first lens 510 has a positive refractive power and is made of plastic. Its object-side surface 511 is convex near the optical axis, and its image-side surface 512 is convex near the optical axis, and both are aspheric. In addition, the first lens image-side surface 512 includes at least one inflection point.

The second lens 520 has a negative refractive power and is made of plastic. The object-side surface 521 of the second lens 520 is concave near the optical axis, and the image-side surface 522 of the second lens 520 is concave near the optical axis. In addition, the object-side surface 521 of the second lens includes at least one inflection point.

The third lens 530 has a positive refractive power and is made of plastic. Its object-side surface 531 is concave near the optical axis, and its image-side surface 532 is convex near the optical axis, and all are aspheric. In addition, the object-side surface 531 and the image-side surface 532 of the third lens each include at least one inflection point.

The fourth lens 540 has a negative refractive power and is made of plastic. Its object-side surface 541 is convex near the optical axis, and its image-side surface 542 is concave near the optical axis, and both are aspheric. In addition, the fourth lens object-side surface 541 and The image-side surface 542 all includes at least one inflection point, and the fourth lens-image-side surface 542 includes a shape of a concave surface to a convex surface off-axis.

The fifth lens 550 has a positive refractive power and is made of plastic. Its object-side surface 551 is convex near the optical axis, and its image-side surface 552 is convex near the optical axis, and all are aspheric. In addition, the object-side surface 551 and the image-side surface 552 of the fifth lens each include at least one inflection point.

The sixth lens 560 has a negative refractive power and is made of plastic. Its object-side surface 561 is concave near the optical axis, and its image-side surface 562 is convex near the optical axis, and all are aspheric. In addition, the object-side surface 561 and the image-side surface 562 of the sixth lens each include at least one inflection point.

The filter element 570 is made of glass and is disposed between the sixth lens 560 and the imaging surface 580 without affecting the focal length of the optical lens for photography.

Refer to Tables 9 and 10 below.

In the fifth embodiment, the aspherical curve equation is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

With Table 9 and Table 10, the following data can be calculated:

In the fifth embodiment, the object-side surface and the image-side surface of the first lens 510, the second lens 520, the third lens 530, the fourth lens 540, the fifth lens 550, and the sixth lens 560 include a list of the number of inflection points as follows.

In addition, in the photographic optical lens of the fifth embodiment of the present disclosure, at least three of the six lenses have an Abbe number of less than 45; specifically, in the fifth embodiment, the four lenses have an Abbe number of less than 45. , Respectively, a second lens 520, a third lens 530, a fifth lens 550, and a sixth lens 560.

<Sixth Embodiment>

Please refer to FIG. 11 and FIG. 12, wherein FIG. 11 is a schematic diagram of an image capturing device according to a sixth embodiment of the present invention, and FIG. 12 is the spherical aberration and image of the sixth embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 11, the image pickup device of the sixth embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 690. The optical lens for photography includes an aperture 600, a first lens 610, a second lens 620, an aperture 601, a third lens 630, a fourth lens 640, a fifth lens 650, a sixth lens 660, The filter element 670 and the imaging surface 680, and the electronic photosensitive element 690 is disposed on the imaging surface 680 of an optical lens for photography. The optical lens for photography includes six lenses (610, 620, 630, 640, 650, 660). There are no other interpolated lenses among the six lenses.

The first lens 610 has a positive refractive power and is made of plastic. Its object-side surface 611 is convex at the near-optical axis, and its image-side surface 612 is convex at the near-optical axis, and all are aspheric. In addition, the first lens image-side surface 612 includes at least one inflection point.

The second lens 620 has a negative refractive power and is made of plastic. Its object-side surface 621 is concave at the near optical axis, and its image-side surface 622 is concave at the near optical axis, and both are aspheric. In addition, the object-side surface 621 of the second lens includes at least one inflection point.

The third lens 630 has a positive refractive power and is made of plastic. Its object-side surface 631 is convex at the near optical axis, and its image-side surface 632 is convex at the near optical axis, and all of them are aspheric. In addition, the object-side surface 631 and the image-side surface 632 of the third lens each include at least one inflection point.

The fourth lens 640 has a negative refractive power and is made of plastic. Its object-side surface 641 is convex at the near optical axis, and its image-side surface 642 is concave at the near optical axis, and all are aspheric. In addition, the object-side surface 641 and the image-side surface 642 of the fourth lens each include at least one inflection point, and the image-side surface 642 of the fourth lens includes a concave-convex surface shape off-axis.

The fifth lens 650 has a positive refractive power and is made of plastic. Its object-side surface 651 is convex near the optical axis, and its image-side surface 652 is convex near the optical axis, and all are aspheric. In addition, both the object-side surface 651 and the image-side surface 652 of the fifth lens include at least one inflection point.

The sixth lens 660 has a negative refractive power and is made of plastic. Its object-side surface 661 is convex near the optical axis, and its image-side surface 662 is near the optical axis. They are concave and all are aspheric. In addition, the object-side surface 661 and the image-side surface 662 of the sixth lens each include at least one inflection point.

The filter element 670 is made of glass and is disposed between the sixth lens 660 and the imaging surface 680 without affecting the focal length of the optical lens for photography.

Refer to Table 11 and Table 12 for cooperation.

In the sixth embodiment, the curve equation of the aspherical surface is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

With Table 11 and Table 12, the following data can be calculated:

In the sixth embodiment, the object-side surface and the image-side surface of the first lens 610, the second lens 620, the third lens 630, the fourth lens 640, the fifth lens 650, and the sixth lens 660 include a list of the number of inflection points as follows.

In addition, in the optical lens for photography of the sixth embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45; specifically, the Abbe number of the four lenses is less than 45 in the sixth embodiment. , Respectively, a second lens 620, a third lens 630, a fifth lens 650, and a sixth lens 660.

<Seventh Embodiment>

Please refer to FIG. 13 and FIG. 14, where FIG. 13 shows a schematic diagram of an image capturing device according to a seventh embodiment of the present invention, and FIG. 14 shows the spherical aberration and image of the seventh embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 13, the image pickup device of the seventh embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 790. The optical lens for photography includes an aperture 700, a first lens 710, a second lens 720, a diaphragm 701, a third lens 730, a fourth lens 740, a fifth lens 750, a sixth lens 760, The filter element 770 and the imaging surface 780, and the electronic photosensitive element 790 is disposed on the imaging surface 780 of an optical lens for photography. The optical lens for photography includes six lenses (710, 720, 730, 740, 750, 760). There are no other interpolated lenses among the six lenses.

The first lens 710 has a positive refractive power and is made of plastic. Its object-side surface 711 is convex at the near-optical axis, and its image-side surface 712 is convex at the near-optical axis, and all are aspheric. In addition, the first lens image-side surface 712 includes at least one inflection point.

The second lens 720 has a negative refractive power and is made of plastic. Its object-side surface 721 is concave near the optical axis, and its image-side surface 722 is concave near the optical axis, and both are aspheric. In addition, the object-side surface 721 of the second lens includes at least one inflection point.

The third lens 730 has a positive refractive power and is made of plastic. Its object-side surface 731 is convex at the near-optical axis, and its image-side surface 732 is convex at the near-optical axis, and all are aspheric. In addition, the object-side surface 731 and the image-side surface 732 of the third lens each include at least one inflection point.

The fourth lens 740 has a negative refractive power and is made of plastic. Its object-side surface 741 is convex near the optical axis, and its image-side surface 742 is concave near the optical axis, and all of them are aspheric. In addition, the object-side surface 741 and the image-side surface 742 of the fourth lens each include at least one inflection point, and the image-side surface 742 of the fourth lens includes a concave-convex surface shape off-axis.

The fifth lens 750 has a positive refractive power and is made of plastic. Its object-side surface 751 is convex near the optical axis, and its image-side surface 752 is convex near the optical axis, and all are aspheric. In addition, the object-side surface 751 and the image-side surface 752 of the fifth lens each include at least one inflection point.

The sixth lens 760 has a negative refractive power and is made of plastic. Its object-side surface 761 is concave at the near optical axis, and its image-side surface 762 is convex at the near optical axis, and all are aspheric. In addition, the object-side surface 761 and the image-side surface 762 of the sixth lens each include at least one inflection point.

The filter element 770 is made of glass and is disposed between the sixth lens 760 and the imaging surface 780 without affecting the focal length of the optical lens for photography.

Refer to Tables 13 and 14 below for further cooperation.

In the seventh embodiment, the curve equation of the aspherical surface is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

According to Table 13 and Table 14, the following data can be calculated:

In the seventh embodiment, the object-side surface and the image-side surface of the first lens 710, the second lens 720, the third lens 730, the fourth lens 740, the fifth lens 750, and the sixth lens 760 include a list of the number of inflection points as follows.

In addition, in the seventh embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45. Specifically, in the seventh embodiment, the Abbe number of the four lenses is less than 45. , Respectively, a second lens 720, a third lens 730, a fifth lens 750, and a sixth lens 760.

<Eighth Embodiment>

Please refer to FIG. 15 and FIG. 16, wherein FIG. 15 shows a schematic diagram of an image capturing device according to an eighth embodiment of the present invention, and FIG. 16 shows the spherical aberration and image of the eighth embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 15, the image pickup device of the eighth embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 890. Optical lens for photography from object side to The image side sequentially includes a first lens 810, an aperture 800, a second lens 820, a third lens 830, a fourth lens 840, a fifth lens 850, a sixth lens 860, a filter element 870, and an imaging surface 880. The element 890 is disposed on the imaging surface 880 of an optical lens for photography, wherein the optical lens for photography includes six lenses (810, 820, 830, 840, 850, 860), and there is no other interpolated lens between the six lenses.

The first lens 810 has a positive refractive power and is made of glass. Its object-side surface 811 is convex near the optical axis, and its image-side surface 812 is concave near the optical axis, and all are aspheric. In addition, the image-side surface 812 of the first lens includes at least one inflection point.

The second lens 820 has a negative refractive power and is made of plastic. Its object-side surface 821 is concave at the near optical axis, and its image-side surface 822 is concave at the near optical axis, and all are aspheric. In addition, the object-side surface 821 and the image-side surface 822 of the second lens each include at least one inflection point.

The third lens 830 has a positive refractive power and is made of plastic. Its object-side surface 831 is convex near the optical axis, and its image-side surface 832 is concave near the optical axis, and all of them are aspheric. In addition, the object-side surface 831 and the image-side surface 832 of the third lens each include at least one inflection point.

The fourth lens 840 has a negative refractive power and is made of plastic. Its object-side surface 841 is convex near the optical axis, and its image-side surface 842 is concave near the optical axis, and all are aspheric. In addition, the object-side surface 841 and the image-side surface 842 of the fourth lens each include at least one inflection point, and the image-side surface 842 of the fourth lens includes a concave-convex surface shape off-axis.

The fifth lens 850 has a positive refractive power and is made of plastic. Its object-side surface 851 is convex near the optical axis, and its image-side surface 852 is convex near the optical axis, and all are aspheric. In addition, both the object-side surface 851 and the image-side surface 852 of the fifth lens include at least one inflection point. Furthermore, the fourth lens image-side surface 842 is bonded to the fifth lens object-side surface 851.

The sixth lens 860 has a negative refractive power and is made of plastic. Its object-side surface 861 is concave at the near optical axis, and its image-side surface 862 is convex at the near optical axis, and all are aspheric.

The filter element 870 is made of glass and is disposed between the sixth lens 860 and the imaging surface 880 without affecting the focal length of the optical lens for photography.

Refer to Tables 15 and 16 below for further cooperation.

In the eighth embodiment, the curve equation of the aspherical surface is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

According to Table 15 and Table 16, the following data can be calculated:

In the eighth embodiment, the object-side surface and the image-side surface of the first lens 810, the second lens 820, the third lens 830, the fourth lens 840, the fifth lens 850, and the sixth lens 860 include a list of the number of inflection points as follows.

In addition, in the eighth embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45; specifically, the abbe number of the four lenses is less than 45 in the eighth embodiment. , Respectively a second lens 820, a fourth lens 840, a fifth lens 850, and a sixth lens 860.

<Ninth Embodiment>

Please refer to FIG. 17 and FIG. 18, where FIG. 17 is a schematic diagram of an image capturing device according to a ninth embodiment of the present invention, and FIG. 18 is a spherical aberration and an image of the ninth embodiment in order from left to right. Scatter and distortion curves. As can be seen from FIG. 17, the image pickup device of the ninth embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 990. The optical lens for photography includes an aperture 900, a first lens 910, a second lens 920, a third lens 930, a fourth lens 940, a fifth lens 950, a sixth lens 960, and a filter element 970 in this order from the object side to the image side. And an imaging surface 980, and the electronic photosensitive element 990 is disposed on the imaging surface 980 of an optical lens for photography, wherein the optical lens for photography includes six lenses (910, 920, 930, 940, 950, 960), and the six lenses No other interpolated lenses.

The first lens 910 has a positive refractive power and is made of plastic. Its object-side surface 911 is convex near the optical axis, and its image-side surface 912 is near the optical axis. Are convex and all are aspheric. In addition, the image-side surface 912 of the first lens includes at least one inflection point.

The second lens 920 has a negative refractive power and is made of plastic. The object-side surface 921 is concave at the near-optical axis, and the image-side surface 922 is concave at the near-optical axis, and both are aspheric. In addition, the object-side surface 921 and the image-side surface 922 of the second lens each include at least one inflection point.

The third lens 930 has a positive refractive power and is made of plastic. Its object-side surface 931 is convex at the near optical axis, and its image-side surface 932 is concave at the near optical axis, and all are aspheric. In addition, the third lens image-side surface 932 includes at least one inflection point.

The fourth lens 940 has a negative refractive power and is made of plastic. Its object-side surface 941 is concave at the near-optical axis, and its image-side surface 942 is concave at the near-optical axis, and all are aspheric. In addition, the fourth lens image side surface 942 includes at least one inflection point, and the fourth lens image side surface 942 includes a shape of a concave surface to a convex surface off-axis.

The fifth lens 950 has a positive refractive power and is made of plastic. Its object-side surface 951 is convex near the optical axis, and its image-side surface 952 is convex near the optical axis, and all are aspheric. In addition, the fifth lens image-side surface 952 includes at least one inflection point.

The sixth lens 960 has a negative refractive power and is made of glass. Its object-side surface 961 is concave at the near optical axis, and its image-side surface 962 is concave at the near optical axis, and all are aspheric. In addition, the sixth lens image-side surface 962 includes at least one inflection point.

The filter element 970 is made of glass and is disposed between the sixth lens 960 and the imaging surface 980 without affecting the focal length of the optical lens for photography.

Refer to Tables 17 and 18 below.

In the ninth embodiment, the aspherical curve equation is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

The following data can be calculated with Table 17 and Table 18:

In the ninth embodiment, the object-side surface and the image-side surface of the first lens 910, the second lens 920, the third lens 930, the fourth lens 940, the fifth lens 950, and the sixth lens 960 include a list of the number of inflection points as follows.

In addition, in the photographic optical lens of the ninth embodiment of the present disclosure, the Abbe number of at least three of the six lenses is less than 45; specifically, In other words, in the ninth embodiment, the Abbe numbers of the four lenses are less than 45, which are the second lens 920, the fourth lens 940, the fifth lens 950, and the sixth lens 960, respectively.

<Tenth Embodiment>

Please refer to FIG. 19 and FIG. 20, wherein FIG. 19 shows a schematic diagram of an image capturing device according to a tenth embodiment of the present invention, and FIG. 20 sequentially shows the spherical aberration and image of the tenth embodiment from left to right. Scatter and distortion curves. As can be seen from FIG. 19, the image pickup device of the tenth embodiment includes an optical lens (not otherwise labeled) for photography and an electronic photosensitive element 1090. The optical lens for photography includes an aperture 1000, a first lens 1010, a second lens 1020, a third lens 1030, a fourth lens 1040, a fifth lens 1050, a sixth lens 1060, and a filter element 1070 in this order from the object side to the image side. And an imaging surface 1080, and the electronic photosensitive element 1090 is disposed on the imaging surface 1080 of an optical lens for photography, wherein the optical lens for photography includes six lenses (1010, 1020, 1030, 1040, 1050, 1060), and the six lenses No other interpolated lenses.

The first lens 1010 has a positive refractive power and is made of plastic. Its object-side surface 1011 is convex at the near optical axis, and its image-side surface 1012 is concave at the near optical axis, and all are aspheric. In addition, the first lens image-side surface 1012 includes at least one inflection point.

The second lens 1020 has a negative refractive power and is made of plastic. Its object-side surface 1021 is concave at the near optical axis, and its image-side surface 1022 is concave at the near optical axis, and all are aspheric. In addition, the object-side surface 1021 of the second lens includes at least one inflection point.

The third lens 1030 has a positive refractive power and is made of plastic. Its object-side surface 1031 is convex at the near optical axis, and its image-side surface 1032 is near the optical axis. It is concave and all are aspheric. In addition, the image-side surface 1032 of the third lens includes at least one inflection point.

The fourth lens 1040 has a negative refractive power and is made of plastic. Its object-side surface 1041 is concave at the near optical axis, and its image-side surface 1042 is concave at the near optical axis, and both are aspheric. In addition, the fourth lens image-side surface 1042 includes at least one inflection point, and the fourth lens image-side surface 1042 includes a shape of a concave surface to a convex surface off-axis.

The fifth lens 1050 has a positive refractive power and is made of plastic. Its object-side surface 1051 is convex at the near optical axis, and its image-side surface 1052 is convex at the near optical axis, and all are aspheric. In addition, the fifth lens image-side surface 1052 includes at least one inflection point.

The sixth lens 1060 has a negative refractive power and is made of plastic. The object-side surface 1061 is concave at the near optical axis, and the image-side surface 1062 is concave at the near optical axis, and are all aspheric. In addition, the image-side surface 1062 of the sixth lens includes at least one inflection point.

The filter element 1070 is made of glass and is disposed between the sixth lens 1060 and the imaging surface 1080 without affecting the focal length of the optical lens for photography.

Refer to Table 19 and Table 20 for cooperation.

In the tenth embodiment, the aspherical curve equation is expressed as the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and will not be repeated here.

According to Table 19 and Table 20, the following data can be calculated:

In the tenth embodiment, the object-side surface and the image-side surface of the first lens 1010, the second lens 1020, the third lens 1030, the fourth lens 1040, the fifth lens 1050, and the sixth lens 1060 include a list of the number of inflection points as follows.

In addition, in the tenth embodiment of the optical lens for photography of the present disclosure, at least three of the six lenses have an Abbe number of less than 45; specifically, in the tenth embodiment, the three lenses have an Abbe number of less than 45. , Respectively a second lens 1020, a fourth lens 1040, and a fifth lens 1050.

<Eleventh Embodiment>

Please refer to FIG. 22A, which is a schematic diagram of an image capturing device according to an eleventh embodiment of the present invention. As can be seen from FIG. 22A, the image capturing device of the eleventh embodiment includes a reflective element 1112a, a photographic optical lens 1100, and an electronic photosensitive element (not shown). The reflective element 1112a is disposed on the subject 1111 and the photographic optics. Between the lenses 1100, the image side of the photographic optical lens 1100 includes an imaging surface 1180, and the electronic photosensitive element is disposed on the imaging surface 1180 of the photographic optical lens 1100. From Figure 22A It is known that, in the image capturing device of the eleventh embodiment, the reflecting element 1112a can be a stack, which can bend the optical axis of the image capturing device, and can limit its field of view angle and the size of the reflected beam. Thereby, the direction of the incident light of the optical lens for photography can be changed so that the incident light is imaged on the imaging surface 1180, and the spatial configuration is more flexible, which is beneficial to apply the optical lens for photography to different image capturing devices or electronic devices.

Referring again to FIG. 22B, a schematic diagram of an image capturing device according to an eleventh embodiment of the present invention and another reflecting element 1112b is shown. As can be seen from FIG. 22B, in the image capturing device of the eleventh embodiment, the reflecting element 1112b can be a mirror, which can also change the direction of the incident light of the optical lens for photography and image the incident light on the imaging surface 1180. It is used to apply photographic optical lenses to different image capturing devices or electronic devices.

In addition, referring to FIG. 22C, it is a schematic diagram showing that the imaging device according to the eleventh embodiment of the present invention is not provided with a reflective element. As can be seen from FIG. 22C, according to the requirements of different image capturing devices or electronic devices, the image capturing device may not be provided with a reflective element between the subject 1111 and the photographic optical lens 1100.

The photographing optical lens 1100 in FIGS. 22A, 22B, and 22C may be any one of the foregoing first to tenth embodiments.

<Twelfth Embodiment>

Please refer to FIG. 23, which is a schematic perspective view of an image capturing device 10 according to a twelfth embodiment of the present invention. As can be seen from FIG. 23, the image capturing device 10 of the twelfth embodiment is a camera module. The image capturing device 10 includes an imaging lens 11, a driving device group 12, and an electronic photosensitive element 13. The image lens 11 includes a photographing optical lens according to the first embodiment of the present invention and a lens barrel (not otherwise labeled) carrying the photographic optical lens. The image capturing device 10 uses the imaging lens 11 to focus light and image the subject, and cooperates with the driving device group 12 to focus the image. Finally, the image is captured on the electronic photosensitive element 13 and the image data is output.

The driving device group 12 may be an Auto-Focus module, and its driving method may use, for example, a Voice Coil Motor (VCM), a Micro Electro-Mechanical Systems (MEMS), a piezoelectric system ( Piezoelectric) or Shape Memory Alloy. The driving device group 12 allows the photographic optical lens to obtain a better imaging position, and can provide the subject to shoot clear images at different object distances.

The image capturing device 10 can be equipped with an electronic photosensitive element 13 (such as CMOS, CCD) with good sensitivity and low noise, which is set on the imaging surface of the optical lens for photography, and can truly present the good imaging quality of the optical lens for photography.

In addition, the image capturing device 10 may further include an image stabilization module 14, which may be a kinetic energy sensing element such as an accelerometer, a gyroscope, or a Hall effect sensor. In the twelfth embodiment, the image stabilization module 14 is a gyroscope, but not limited to this. By adjusting the changes in different axial directions of the optical lens for photography to compensate for blurry images due to shaking at the moment of shooting, the imaging quality of dynamic and low-light scenes is further improved, and for example, optical image stabilization (OIS) is provided Advanced image compensation functions such as Electronic Image Stabilization (EIS).

<Thirteenth Embodiment>

Please refer to FIG. 24A, FIG. 24B, and FIG. 24C, where FIG. 24A shows a schematic diagram of one side of an electronic device 20 according to a thirteenth embodiment of the present invention, and FIG. 24B shows an electronic device according to FIG. 24A. A schematic diagram of the other side of the device 20. FIG. 24C shows a schematic diagram of the system according to the electronic device 20 in FIG. 24A. As can be seen from FIGS. 24A, 24B, and 24C, the electronic device 20 of the thirteenth embodiment is a smart phone. The electronic device 20 includes two image capturing devices 10a and 10b, a flash module 21, and a focus assist module. 22. An image signal processor (ISP) 23, a user interface 24, and an image software processor 25. When the user shoots the subject 26 through the user interface 24, the electronic device 20 uses at least one of the image capturing devices 10a and 10b to focus and capture the image, activates the flash module 21 to supplement the light, and uses a focus assist module The object distance information provided by 22 is used for fast focusing, and the image signal processor 23 and the image software processor 25 are used for image optimization processing to further improve the image quality produced by the optical lens for photography. The focus assist module 22 can use infrared or laser focus assist systems to achieve fast focus, and the user interface 24 can use touch screen or physical shooting buttons to cooperate with the various functions of image processing software for image shooting and image processing.

The two image capturing devices 10a and 10b in the thirteenth embodiment may be the same as the image capturing device 10 in the twelfth embodiment, and details are not described herein again. In detail, the two image capturing devices 10a and 10b in the thirteenth embodiment may be a telephoto image capturing device, a wide-angle image capturing device, and a general viewing angle image capturing device, respectively. (Ie, between wide-angle and telephoto), or another type of image capturing device, is not limited to this configuration.

<Fourteenth Embodiment>

Please refer to FIG. 25, which illustrates a schematic diagram of an electronic device 30 according to a fourteenth embodiment of the present invention. The electronic device 30 of the fourteenth embodiment is a wearable device. The electronic device 30 includes an image capturing device 31. The image capturing device 31 may be the same as the foregoing twelfth embodiment, and is not described herein again.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the attached patent application.

Claims (27)

An optical lens for photography includes six lenses. The six lenses are, in order from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a A sixth lens; wherein each of the lenses has an object-side surface facing the object side and an image-side surface facing the image side; wherein, the first lens has a positive refractive power; the second lens has a negative refractive power; the fourth The lens has a negative refractive power, and its image side surface is concave near the optical axis; the fifth lens has a positive refractive power, its object side surface is convex near the optical axis, and its image side surface is convex near the optical axis; wherein, At least one of the object-side surface and the image-side surface of the first lens to the sixth lens includes at least one inflection point; wherein, the Abbe number of the fifth lens is V5, and the image-side surface of the sixth lens reaches one The distance of the imaging surface on the optical axis is BL, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the focal length of the photographic optical lens is f, and the focal length of the first lens is f1, The distance between the third lens and the fourth lens on the optical axis Is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, the entrance pupil diameter of the photographic optical lens For EPD, it satisfies the following conditions: 10.0 <V5 <45.0; 0 <BL / TL <0.55; 0.5 <TL / f <1.0; 0 <(T45 + T56) / T34 <5.80; 0.60 <f / f1 <5.0; And 1.60 <f / EPD <2.60. The optical lens for photography as described in item 1 of the patent application scope, wherein the minimum value of the Abbe number of the lens in the optical lens for photography is Vmin, and the Abbe number of the fifth lens is V5, which satisfies the following conditions: 13.0 < V5 <38.0; and 10.0 <Vmin <20.0. The optical lens for photography as described in item 1 of the patent application range, wherein the distance between the third lens and the fourth lens on the optical axis is T34, and the distance between the fourth lens and the fifth lens on the optical axis The distance is T45, and the separation distance between the fifth lens and the sixth lens on the optical axis is T56, which satisfies the following condition: 0 <(T45 + T56) / T34 <2.45. The optical lens for photography as described in Item 1 of the patent application range, wherein the radius of curvature of the object-side surface of the fifth lens is R9, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfies the following conditions: -100.00 < R10 / R9 <-0.10. The optical lens for photography as described in item 1 of the patent application, wherein the Abbe number of the third lens is V3 and the Abbe number of the fourth lens is V4, which satisfies the following conditions: 20.0 <V3 + V4 <100 . The optical lens for photography as described in item 1 of the patent application range, wherein the thickness of the second lens on the optical axis is CT2, and the separation distance between the first lens and the second lens on the optical axis is T12, which satisfies The following conditions: 0.41 <T12 / CT2 <3.8. The optical lens for photography as described in item 1 of the patent application range, wherein the distance from the object side surface of the first lens to the image side surface of the sixth lens on the optical axis is TD, and the third lens and the fourth lens are The separation distance on the optical axis is T34, which satisfies the following conditions: 1.8 <TD / T34 <5.0. The optical lens for photography as described in item 1 of the patent application scope, wherein the focal length of the optical lens for photography is f, and the focal length of the sixth lens is f6, which satisfies the following conditions: -0.90

f / f6 <0.60. The optical lens for photography as described in item 1 of the patent application scope further includes: an aperture disposed on the object side of the third lens, wherein the distance from the aperture to the imaging plane on the optical axis is SL, the first The distance from the object side surface of the lens to the imaging plane on the optical axis is TL, which satisfies the following conditions: 0.60 <SL / TL <1.2. The optical lens for photography as described in item 1 of the patent application range, wherein the object-side surface of the first lens is convex near the optical axis, the focal length of the optical lens for photography is f, and the radius of curvature of the object-side surface of the first lens It is R1, which satisfies the following conditions: 3.2 <f / R1. The optical lens for photography as described in item 1 of the patent application range, wherein the image side surface of the second lens is concave at the near optical axis, and the image side surface of the fourth lens includes a concave to convex shape off-axis. The optical lens for photography as described in Item 1 of the patent application range, wherein at least three of the six lenses have an Abbe number less than 45. An optical lens for photography includes six lenses. The six lenses are, in order from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a A sixth lens; wherein each of the lenses has an object-side surface facing the object side and an image-side surface facing the image side; wherein, the first lens has a positive refractive power; the second lens has a negative refractive power; the fourth The lens has a negative refractive power; the fifth lens has a positive refractive power, its object side surface is convex near the optical axis, and its image side surface is convex near the optical axis; wherein, the objects from the first lens to the sixth lens At least one of the side surface and the image side surface includes at least one inflection point; wherein, the Abbe number of the fifth lens is V5, and the distance from the image side surface of the sixth lens to an imaging plane on the optical axis is BL, The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the focal length of the photographic optical lens is f, the focal length of the first lens is f1, the third lens and the fourth lens The separation distance on the axis is T34, the fourth lens and the fifth The separation distance between the mirror on the optical axis is T45, the separation distance between the fifth lens and the sixth lens on the optical axis is T56, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfies the following conditions: 10.0 < V5 <45.0; 0 <BL / TL <0.55; 0.5 <TL / f <1.0; 0 <(T45 + T56) / T34 <4.50; 1.0 <f / f1 <3.0; and -70.0 <R10 / f <0. The optical lens for photography as described in item 13 of the patent application range, wherein the Abbe number of the fifth lens is V5, which satisfies the following conditions: 16.0 <V5 <30.0. The optical lens for photography as described in item 13 of the patent application range, wherein the distance between the third lens and the fourth lens on the optical axis is T34, and the distance between the fourth lens and the fifth lens on the optical axis The distance is T45, and the separation distance between the fifth lens and the sixth lens on the optical axis is T56, which satisfies the following condition: 0 <(T45 + T56) / T34 <2.45. The optical lens for photography as described in item 13 of the patent application range, wherein the focal length of the optical lens for photography is f, and the focal length of the first lens is f1, which satisfies the following conditions: 1.7 <f / f1 <2.5. An optical lens for photography as described in item 13 of the patent application range, wherein the focal length of the optical lens for photography is f, the diameter of the entrance pupil of the optical lens for photography is EPD, and the object-side surface of the first lens reaches the imaging plane at The distance on the optical axis is TL, the maximum image height of the optical lens for photography is ImgH, and half of the maximum angle of view in the optical lens for photography is HFOV, which satisfies the following conditions: 1.00 <f / EPD <2.80; 1.6 <TL / ImgH <5.0; 10.0 degrees <HFOV <30.0 degrees; and 2.0mm <TL <20mm. An optical lens for photography as described in item 13 of the patent application range, wherein the Abbe number of the third lens is V3, the Abbe number of the fourth lens is V4, and the object-side surface of the first lens reaches the sixth lens The distance of the mirror side surface on the optical axis is TD, and the distance between the third lens and the fourth lens on the optical axis is T34, which satisfies the following conditions: 20.0 <V3 + V4 <100; and 1.8 <TD / T34 <5.0. The optical lens for photography as described in item 13 of the patent application range, wherein the thickness of the second lens on the optical axis is CT2, and the separation distance between the first lens and the second lens on the optical axis is T12, which satisfies The following conditions: 0.41 <T12 / CT2 <3.8. The optical lens for photography as described in item 13 of the patent application range, wherein the distance from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis is TD, and the thickness of the first lens on the optical axis It is CT1, which satisfies the following conditions: 1.8 <TD / CT1 <7.0. The optical lens for photography as described in item 13 of the patent application range, wherein the focal length of the optical lens for photography is f, and the focal length of the second lens is f2, which satisfies the following conditions: -5.0 <f / f2 <-0.65. The optical lens for photography as described in item 13 of the patent application range, wherein the image-side surface of the fourth lens is concave at the near-optical axis and includes a concave-convex shape off-axis, and the focal length of the optical lens for photography is f. The maximum image height of the optical lens for photography is ImgH, which satisfies the following conditions: 1.65 <f / ImgH <5.50. An imaging device includes: the optical lens for photography as described in item 13 of the patent application scope; and an electronic photosensitive element, which is disposed on the imaging surface of the optical lens for photography. An electronic device comprising: the image capturing device as described in item 23 of the patent application scope. An optical lens for photography includes six lenses. The six lenses are, in order from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a A sixth lens; wherein each of the lenses has an object-side surface facing the object side and an image-side surface facing the image side; wherein, the first lens has a positive refractive power; the second lens has a negative refractive power; the fourth The lens has a negative refractive power; the fifth lens has a positive refractive power, its object side surface is convex near the optical axis, and its image side surface is convex near the optical axis; wherein, the objects from the first lens to the sixth lens At least one of the side surface and the image side surface includes at least one inflection point; wherein, the Abbe number of the fifth lens is V5, and the distance from the image side surface of the sixth lens to an imaging plane on the optical axis is BL, The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the focal length of the photographic optical lens is f, the focal length of the first lens is f1, the third lens and the fourth lens The separation distance on the axis is T34, the fourth lens and the fifth The separation distance between the mirror on the optical axis is T45, the separation distance between the fifth lens and the sixth lens on the optical axis is T56, the radius of curvature of the object-side surface of the fifth lens is R9, and the image-side surface of the fifth lens The radius of curvature is R10, which meets the following conditions: 10.0 <V5 <45.0; 0 <BL / TL <0.55; 0.5 <TL / f <1.0; 0 <(T45 + T56) / T34 <4.50; 1.0 <f / f1 <3.0; and -105.00 <R10 / R9 <0. The optical lens for photography as described in item 25 of the patent application range, wherein the minimum value of the Abbe number of the lens in the optical lens for photography is Vmin, which satisfies the following conditions: 10.0 <Vmin <20.0. The optical lens for photography as described in item 25 of the patent application range, wherein the radius of curvature of the object-side surface of the fifth lens is R9, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfies the following conditions: -100.00 < R10 / R9 <-0.10.